Confederate ranger whose guerrilla band specialized in attacking and disrupting Union supply lines. Mosby’s nickname, The Gray Ghost, was derived from his clandestine attack tactics. Ink signature, “Jno. S. Mosby, Washington, D. C.,” on an off-white 4 x 3 Department of Justice card, dated November 27, 1905. Card is affixed to a white 5 x 3 card. Collector’s notation above signature and some scattered light toning and soiling, otherwise fine condition. R&R COA.